We are looking for a free network/infrastructure monitoring solution for a network of about 150 devices (including servers, workstations, switches/routers and printers).
Some of the features we would like to have include:
-Disk usage monitoring
-Network usage monitoring
-Configurable alerts (via e-mail)
-Reports (events, alerts, inventory, etc)
We have been testing Spiceworks (it's free but you get some ads in the administration console), and it seems to be a good option.
We are planning to test Zabbix as well.
I created a small network to test Nagios a couple of years ago, and I remember it demonstrated to be a really powerful and flexible tool, but I'm not clear whether the Nagios Core can be used without a license fee with some other OSS interface or we have to necessarily use Nagios XI and pay for a license.
Most of our machines are running Windows, but we have some Linux and Solaris servers as well.
Can someone clarify my Nagios doubt, comment on the Spiceworks and Zabbix options, and/or provide any other recommendation ?
Any comments appreciated.
Software/Hardware used: Need to monitor Windos XP, Vista, 7, 2000, 2003, Linux and Solaris machines